On the far wall, beyond the sitting area, was a huge door made of iron.

The cover and all the pages were made of iron.

A person made of iron would still feel cold down to the bone.

In the classical period it would have been made of iron.

The gas giants also have a core made of iron.

Although really, Lara, that child has to be made of iron.

Before this, all ships were made of wood or iron.

Entirely too many things here were made of iron and steel.

The process will work on any bar made of iron.

A man could be made of iron, but a thing like that is to make you lose your mind.